android開發步步為營之64:PopupWindow實現自訂快顯功能表

android開發步步為營之64:PopupWindow實現自訂快顯功能表

開啟PopupWindow的源碼，你會發現它其實也是通過WindowManager來添加view的。

 

       private void invokePopup(WindowManager.LayoutParams p) {        if (mContext != null) {            p.packageName = mContext.getPackageName();        }        mPopupView.setFitsSystemWindows(mLayoutInsetDecor);        setLayoutDirectionFromAnchor();        mWindowManager.addView(mPopupView, p);       }

本文實現的效果就是通過PopupWindow彈出一個自訂menu，：

 

點擊右上方的菜單，快顯功能表項，好，我們來實現這個效果。

第一步、設計菜單頁面layout_menu.xml

 

第二步、快顯功能表

 

 

 View popView = getLayoutInflater().inflate(R.layout.layout_menu, null);        LinearLayout layoutShare = (LinearLayout) popView.findViewById(R.id.layout_share);        layoutShare.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                // TODO Auto-generated method stub            }        });        LinearLayout layoutSetting = (LinearLayout) popView.findViewById(R.id.layout_setting);        layoutSetting.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                startActivity(new Intent(MainActivity.this, SettingActivity.class));                if (popup!=null&&popup.isShowing()) {                    popup.dismiss();                }            }        });        LinearLayout layoutUpdate = (LinearLayout) popView.findViewById(R.id.layout_update);        layoutUpdate.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                // TODO Auto-generated method stub            }        });        PobupWindow popup = new PopupWindow(popView, UIUtils.dip2px(MainActivity.this, 156), UIUtils.dip2px(MainActivity.this, 150));        popup.setFocusable(true);        popup.setOutsideTouchable(true);        popup.setBackgroundDrawable(new BitmapDrawable());        layoutMenuContainer = (LinearLayout) findViewById(R.id.layout_menu);        layoutMenuContainer.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                try {                                      int[] location = new int[2];                    v.getLocationOnScreen(location);                    if (popup.isShowing()) {                        popup.dismiss();                    } else {                        // popup.showAsDropDown(v);                        popup.showAsDropDown(v, -UIUtils.dip2px(MainActivity.this, 129), 0);                        // popup.showAtLocation(v,                        // Gravity.NO_GRAVITY,location[0]-UIUtils.dip2px(MainActivity.this,100),location[1]+UIUtils.dip2px(MainActivity.this,60));                    }                } catch (Exception e) {                    if (e != null) {                        e.printStackTrace();                    }                }            }        });

 

 

 

 

第三步、AndroidManifest.xml配置許可權